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MFJ-1205

DigiLINK

TM

USB Radio Interface

Instruction & Technical Manual

Table 1: Jumper Boards and Cables

Board

Cable

Termination

Radios

PA

MFJ-5704P

4-pin Round

Any 4-pin round microphone jack

G

MFJ-5706G

6-pin MiniDIN

Xiegu G-90 & X5105

MD6

MFJ-5706MD

Yaesu & ICOM 6-pin MiniDIN

FT-100, 687, 817, 897, 950, 991
IC-706, 746, 7000, 7400

P8

MFJ-5708P

8-pin Round

IC-728, 735, 738, 746Pro, 751,
756Pro, 761, 765, 775, 781

J11

MFJ-5711J

RJ-11 6-pin Modular

Any RJ-11 microphone jack

J45

MFJ-5745J

RJ-45 8-pin Modular

IC-706 microphone port

D5

MFJ-5705D

Ten-Tec 5-pin DIN

Argo-V, Jupiter/Pegasus, Omni-
VII

D8

MFJ-5708D

8-pin DIN

Any 8-pin DIN data port

D13I

MFJ-5713DI

ICOM 13-pin DIN

IC-706, 716, 7000, 7200, 7300,
7410, 9100

D13K1

MFJ-5713DK1

Kenwood 13-pin DIN

TS-140, 450S, 570D, 590S, 66,
850, 870, 950, 2000

D13K2

MFJ-5713DK2

Kenwood 13-pin DIN

TS-440, 690

D13K3

MFJ-5713DK3

Kenwood 13-pin DIN

TS-940

K3

MFJ-5700K3

Electraft Audio I/O Jacks

Elecraft K3

KX3

MFJ-5700KX3

Elecraft KX3 I/O Jacks

Elecraft KX3

K

MFJ-5700K

Baofeng, Wouxun, & Kenwood

Handytalkies

R

MFJ-5700R

Yaesu

Handytalkies

UT

MFJ-5700UT

Unterminated

No connectors

-4-

Summary of Contents for DigiLINK MFJ-1205

Page 1: ...DigiLINKTM USB Radio Interface MFJ 1205 INSTRUCTION MANUAL c 2020 MFJ Enterprises Inc 300 Industrial Park Rd Starkville MS 39759 P 662 323 5869 F 662 323 6551 ...

Page 2: ...al handbooks or other official publications The copy of this manual provided to the customer will not be updated to reflect current data Customers using this manual should report errors or omissions recommendations for improvements or other comments to MFJ Enterprises 300 Industrial Park Road Starkville MS 39759 Phone 662 323 5869 Fax 662 323 6551 Business hours M F 8 00 AM 4 30 PM CST ...

Page 3: ... CONTROLS CONNECTIONS 3 2 SYSTEM SETUP OPERATION 3 2 1 INSTALLATION 3 2 2 DIGITAL MODE AUDIO ADJUSTMENT 5 3 TECHNICAL ASSISTANCE 5 List of Figures 1 The MFJ 1205 USB Radio Interface 1 2 Audio output comparison to SignaLink USB 2 3 MFJ 2104B Controls Connections 3 i ...

Page 4: ...dphone port for a connection Building on the success of its predecessor the MFJ 1204 the MFJ 1205 retains the convenient form factor yet removes the permanently attached USB cable Now the unit can easily be stored for transport Figure 1 The MFJ 1205 USB Radio Interface 1 2 FEATURES The MFJ 1205 is a significant leap forward for MFJ s digital products Some of the features include USB 2 0 audio and ...

Page 5: ...CONTESTIA Figure 2c and even military standard M110A waveforms Figure 2d identically to the SignaLink meaning you do not have to choose between quality and affordability a PSK 31 b RTTY 45 c CONTESTIA 8 500 d M110A 600L Figure 2 Audio output comparison to SignaLink USB 2 ...

Page 6: ...nto the appropriate radio ports Make sure that your computer has properly mounted the interface and you re good to go One of the benefits to using the MFJ 1204 is that if you ever upgrade your radio you don t have to purchase an entirely new unit Simply order a new cable and jumper board swap them out with the old ones and reconnect Table 1 lists all of the current jumper board and cable combinati...

Page 7: ...rophone jack J45 MFJ 5745J RJ 45 8 pin Modular IC 706 microphone port D5 MFJ 5705D Ten Tec 5 pin DIN Argo V Jupiter Pegasus Omni VII D8 MFJ 5708D 8 pin DIN Any 8 pin DIN data port D13I MFJ 5713DI ICOM 13 pin DIN IC 706 716 7000 7200 7300 7410 9100 D13K1 MFJ 5713DK1 Kenwood 13 pin DIN TS 140 450S 570D 590S 66 850 870 950 2000 D13K2 MFJ 5713DK2 Kenwood 13 pin DIN TS 440 690 D13K3 MFJ 5713DK3 Kenwood...

Page 8: ...ally want to open up your power control all of the way and use the audio controls on your interface to adjust transmit power The reason for this is to keep the ALC from turning on and distorting your signal The drawback is that it is easy to undermodulate your signal increasing your signal to noise ratio Another common method is to set the power to the desired level then slowly increase the audio ...

Page 9: ...2 323 0549 or the MFJ Factory at 662 323 5869 You will be best helped if you have your unit manual and all information on your station handy so you can answer any questions the technicians may ask You can also send questions by mail to MFJ Enterprises Inc 300 Industrial Park Road Starkville MS 39759 by Facsimile FAX to 662 323 6551 or by email to techinfo mfjenterprises com Send a complete descrip...

Page 10: ...USER NOTES ...

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